Results 251 to 260 of about 138,734 (302)
MRS Proceedings, 1988 AbstractAir permeability was determined for concretes of variable porosity (w/c ratio of 0.33, 0.50, and 0.67). The reproducibility of the test and the ability to characterize the permeability of different concrete were evaluated. Results indicate that air permeability test gives suitable reproducibility with a margin of error of 10%, which tends to ...
Daniel Perraton +3 more
openaire +2 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Air‐Based Measurements of Permeability in Pebbly Sands
Groundwater, 2007Abstract We considered small‐scale measurement of permeability in pebbly sands having coarser grains supported in a finer grained matrix (fine packing). Our central question was whether air‐based measurements are representative if made with a permeameter tip seal pressed in the sand matrix.
Conrad, Caleb M. +2 more
openaire +4 more sources
Laboratory Studies on Air Permeability
2018The concept of air permeability of earth materials has been an important parameter to many branches of the earth sciences. Air permeability has been of particular interest to soil and agricultural scientists for decades as it relates to the aeration and gas exchange between soils and the atmosphere, to soil structure, and to the movement of surface and
David S. Springer +2 more
openaire +1 more source
Air Permeability of Parachute Gloths
Textile Research Journal, 1955The air permeability of 8 standard nylon parachute cloths was determined, using samples 6.05 in. in effective diameter. Fifty-nine experimental nylon cloths manu factured by the Bally Ribbon Mills were subjected to the same test procedure, as were 2 experimental fabrics of Orlon and Dacron, and 4 different samples of wire screen.
M.J. Goglia, H.W.S. LaVier, C.D. Brown
openaire +1 more source
Air Permeability of Masonry Materials
2014A series of air permeance tests were performed on test panels constructed of clay brick and mortar according to ASTM E2178-11: Standard Test Method for Air Permeance of Building Materials. Four sets of brick were included in the test which represented a range of brick configurations. Typically, very low values of air permeance were measured on the test
John P. Sanders +2 more
openaire +1 more source